Question: What do I need to compile the new kernel?
Answer: First you need to have PVM somewhere on your system. After installing the lil-gp files make sure that you set the PVM_ROOT environment variable right. It should point to the directory containing the other PVM related directories like lib, include, etc... This should do it.
Question: I installed the files went to one of the applications and typed
make -f GNUmakefile. I got a lot of complaints about pvm things!
Answer: Did you set the PVM_ROOT environment variable? And if so, did you set it right?